CN107477740A - A kind of fresh air treatment system using two phase flow separate heat pipe temperature control - Google Patents
A kind of fresh air treatment system using two phase flow separate heat pipe temperature control Download PDFInfo
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- CN107477740A CN107477740A CN201710809904.2A CN201710809904A CN107477740A CN 107477740 A CN107477740 A CN 107477740A CN 201710809904 A CN201710809904 A CN 201710809904A CN 107477740 A CN107477740 A CN 107477740A
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- 230000005514 two-phase flow Effects 0.000 title claims abstract description 103
- 230000002441 reversible effect Effects 0.000 claims abstract description 86
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- 238000005086 pumping Methods 0.000 claims abstract description 20
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- 238000012545 processing Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 230000003750 conditioning effect Effects 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 4
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
Abstract
The present invention relates to a kind of fresh air treatment system using two phase flow separate heat pipe temperature control, including reversible hot-pipe system, two phase flow separate-type heat pipe system, cold and hot water supply system, humidification system, can cold/hot cutting heat exchange pumping system, interior heat pump and central control system, central control system includes central controller and sensing system, sensing system includes fresh air Temperature Humidity Sensor, air return temperature humidity sensor, air feed Temperature Humidity Sensor and dew point temperature sensor, and the index detected is fed back into central controller；Central controller according to the reversible hot-pipe system of feedback control of sensing system, two phase flow separate-type heat pipe system, cold and hot water supply system, can cold/hot cutting exchange heat pumping system, interior heat pump, humidification system jointly cooperate regulation fresh air temperature and humidity, carry out air feed；And the long online pipeline of application separates the condensation end of conventional heat pipe and evaporation ends, realize remote energy conveying and change heat transfer direction.Effective use of energy sources of the present invention, accurately control new air temperature, improve effect on moisture extraction.
Description
Technical field
The invention belongs to energy utilization technology and air-conditioning technique field, refer to it is a kind of by conventional chilled water system,
Heat recovery technology, heat pump techniques and two phase flow hot pipe technique organically combine the air conditioning method formed, especially suitable for passive
A kind of energy-saving annual fresh air conditioning method of room building.
Background technology
" Passive low-energy building " abbreviation " passive room ", refers to by heat-insulating sound-insulating, sealing strong building and equipment
Technology, make the further minimum heat losses in the external heat transfer process of building and ventilating system.Because its have good heat insulating ability and
Sealing, 90% can be reduced relative to common building energy expenditure, there is great promotional value.In order to prevent haze and maintenance
Indoor temperature and humidity, pressure-fired, it is impossible to windowing ventilation, can only be assembled using fresh air processor conjunction indoor fan coil air conditioner system come
Realize ventilation, the purpose of recuperation of heat and air adjustment, and by recycle it is cold and hot can reach at utmost reduce building heating
The power conservation requirement of cooling energy consumption.
The most of Fresh air handing units of the tradition only simple functions such as the fresh air containing filtering, return air recuperation of heat, it is impossible to which it is passive to meet
More air-conditioning, power conservation requirement in chamber.Occurred in recent years at involvement cold water cold supply system, or even the fresh air of straight swollen machine unit
Reason method, such as " the big enthalpy difference dehumidifying fresh air conditioner of twin-stage recuperation of heat and its control method " (CN106322583A) and " double low-temperature receivers are new
Wind air-conditioner set " (CN205641396U), not only act as the effect of filtering and recuperation of heat, and can be by cold water flow and straight
Swollen machine controls humidity to a certain extent, and improving ventilation temperature using air draft heat energy avoids condensing.But in annual energy-saving run side
There is not more consideration in face, and summer can not accurately control ventilation temperature, indoor fan coil pipe can only be relied on to carry out indoor temperature
Regulation, the energy waste phenomenon of secondary refrigeration be present；Only cold feed when, apparatus dew point is typically not less than 12 DEG C, and starts
During straight swollen machine work, apparatus dew point is typically not less than 8 DEG C, and dehumidifying effect is limited.Also have in addition merely with refrigeration unit and heat
Pump assembly carrys out the processing method of cool-down dehumidification and the air feed that heats up, it is necessary to which more indoor and outdoor connects machine pipeline and outdoor unit, exists and is
The shortcomings that system is complicated, floor space is big.
For the recovery of the cold and hot energy of Summer and winter return air in traditional fresh air processing method, typically exchanged heat using board-like or runner
Device, its deficiency are that new return airway need to be close to could be exchanged heat, it is difficult to realize remote heat exchange, and do not wished in transition season
When hoping heat exchange, bypass air channel need to be in addition set, increase unit volume；Conventional heat pipe formula heat exchanger is by more gravity-type monomers
Heat pipe close arrangement combines, arrangement difficulty it is big, heat exchange amount is uncontrollable, long-play part heat pipe failure and be not easy to examine
Repair.
The content of the invention
In view of the above-mentioned problems, it can accurately control ambient temperature and humidity in passive chamber it is an object of the present invention to provide one kind, omit
The fresh air treatment system of indoor fan coil air conditioner system, to overcome Fresh air handling units of the prior art can not accurately be controlled in summer
Ventilation temperature processed, dehumidifying effect are limited and the problem of system architecture is complicated.
The technical solution used in the present invention is as follows：
A kind of fresh air treatment system using two phase flow separate heat pipe temperature control, including reversible hot-pipe system, two-phase flow point
From formula hot-pipe system, cold and hot water supply system, humidification system, can cold/hot cutting heat exchange pumping system, interior heat pump and central control system,
The central control system includes central controller and sensing system, and the sensing system includes fresh air temperature and humidity sensing
Device, air return temperature humidity sensor, air feed Temperature Humidity Sensor and dew point temperature sensor, the index detected is fed back to
Central controller；Feedback control reversible hot-pipe system of the central controller according to sensing system, two phase flow separate heat pipe system
System, cold and hot water supply system, can cold/hot cutting heat exchange pumping system, interior heat pump, humidification system cooperate jointly regulation fresh air temperature and
Humidity, carry out air feed；
Fresh air is handled by following specific steps successively：
(1) fresh air Temperature Humidity Sensor is arranged on fresh air channel porch, and fresh air utilizes reversible heat pipe in fresh air channel
System is recovered energy out of return air channel, and new air temperature is handled；
When return air temperature is higher than new air temperature, heat is absorbed；When return air temperature is less than new air temperature, cold is absorbed；
Pass through reversible heat pipe four-way reversing valve transformation working medium loop direction；
In this step
(2) evaporator of two phase flow separate-type heat pipe system, which absorbs, carrys out wind-heat amount, for two phase flow separate-type heat pipe system
Condenser use；The evaporator of two phase flow separate-type heat pipe system is arranged on fresh air channel or return air channel；To process
Wind is cooled down, and condenser of the heat transfer of absorption to two phase flow separate-type heat pipe system is used；
(3) pass through cold and hot water supply system by the fresh air of two phase flow separate-type heat pipe system, carry out temperature adjustment；
(4) fresh air Jing Guo temperature adjustment passes through humidification system, carries out humidity regulation；
(5) fresh air Jing Guo humidity regulation by can cold/hot cutting exchange heat pumping system recovered energy out of return air channel；
When return air temperature is higher than new air temperature, heat is absorbed；When return air temperature is less than new air temperature, cold is absorbed；
Pass through reversible heat pipe four-way reversing valve transformation working medium loop direction；
(6) by can cold/hot cutting heat exchange pumping system fresh air pass through interior heat pump evaporator；The steaming of interior heat pump
Device is sent out to use condenser of the heat transfer of absorption to interior heat pump；
(7) fresh air Jing Guo above-mentioned steps passes through dew point temperature sensor, successively by two phase flow separate-type heat pipe system
Condenser, the condenser temperature adjustment twice in succession of interior heat pump；
The condenser of two phase flow separate-type heat pipe system utilizes the heat of the evaporator transmission of two phase flow separate-type heat pipe system
Amount is to temperature adjustment of fresh air；
The condenser of interior heat pump utilize before in heat pump evaporator transmission heat to fresh air temperature adjustment again,
Through ventilation temperature humidity sensor feedback temperature it is suitable when carry out air feed.
Further：The reversible heat pipe fresh air that the reversible heat pipe heat exchanging system includes being arranged on fresh air channel porch is changed
Hot device 3, and be arranged on the reversible heat pipe return-air heat exchanger 40 of return air channel porch, reversible heat pipe fresh air heat exchanger 3 with can
Backheating pipe return-air heat exchanger 40 is connected by reversible heat-pipe working medium circulation line 39, is set on reversible heat-pipe working medium circulation line 39
Put reversible heat pipe four-way reversing valve 41, reversible heat pipe solution pump 42, reversible heat pipe gas-liquid separator 43.
Further：Two phase flow type separating heat-pipe evaporator 4 in step 2 is arranged in fresh air channel, positioned at can backheating
After pipe fresh air heat exchanger 3.
Further：Two phase flow type separating heat-pipe evaporator 4 in step 2 is arranged in return air channel, positioned at can backheating
After pipe return-air heat exchanger 40.
Further：Two phase flow separate heat pipe condenser 13 is arranged on interior evaporator with heat pump 11 and interior heat pump condenser 14
Between, pass through separate heat pipe gas-phase working medium pipe 8, separate heat pipe liquid phase working fluid pipe with two phase flow type separating heat-pipe evaporator 4
10 connections, the separate heat pipe liquid phase working fluid pipe 10 are provided with separate heat pipe flow valve 5.
Further：The cold and hot water supply system is arranged in fresh air channel including cold and hot water- to-water heat exchanger 6, positioned at two-phase flow point
After formula heat pipe evaporator 4.
Further：The humidification system is arranged in fresh air channel including humidifier 7, after cold and hot water- to-water heat exchanger 6.
Further：It is described can cold/hot cutting heat exchange pumping system include can cold/hot cutting heat exchange pump fresh air heat exchanger 9 and can be cold and hot
Switch heat pump return-air heat exchanger 25, it is described can cold/hot cutting heat exchange pump fresh air heat exchanger 9 be arranged in fresh air channel, positioned at humidifier
7 rears；It is described can cold/hot cutting heat exchange pump return-air heat exchanger 25 be arranged in return air channel, positioned at reversible heat pipe return-air heat exchanger 40
Rear, can cold/hot cutting heat exchange pump fresh air heat exchanger 9 and can cold/hot cutting heat exchange pump return-air heat exchanger 25 by can cold/hot cutting exchange heat pump
Working medium circulation pipeline 37 connects, in the import and export pipeline set can cold/hot cutting change heat pump four way reversing valve 26, can cold/hot cutting heat exchange
Pump compressor 27, can cold/hot cutting heat exchange pump device for drying and filtering 29, can cold/hot cutting heat exchange pump choke valve 30 and check valve 28.
Further：The interior heat pump includes interior evaporator with heat pump 11 and interior heat pump condenser 14, is arranged at newly
In wind passage, the interior evaporator with heat pump 11 positioned at can cold/hot cutting heat exchange pump fresh air heat exchanger 9 it is cold with two phase flow separate heat pipe
Between condenser 13, the interior heat pump condenser 14 is arranged on after two phase flow separate heat pipe condenser 13；Interior evaporator with heat pump
11 are connected with interior heat pump condenser 14 by interior heat pump fluid circulation line 33, and interior heat pump drying mistake is provided with the import and export pipeline
Filter 21, interior throttling of heat pump valve 20, interior heat pump compressor 22.
Further：The fresh air channel and return air channel are made up of heat-insulating and sealing plate, are set in fresh air channel exit
There are fresh air air feed blower fan, return air channel exit to be provided with return air exhaust fan.
Further：The VMC also includes online pipeline, and the online pipeline is arranged on fresh air channel and return air
Between passage, fresh air channel and the respective corresponding heat exchanger in return air channel are connected.
Beneficial effect
The present invention carries out energy regenerating using separate heat pipe, and the condensation end of conventional heat pipe and evaporation ends are separated,
And connect to form circulation loop using longer online pipeline, remote energy conveying can be achieved and change heat transfer direction, heat pipe
Various parts dispersed placement, space utilization are flexible；It is big that two phase flow heat pipe possesses energy transmission density, required driving force, heat exchange
The advantages of area, heat exchanger volume and connecting line diameter significantly reduce；To consume a small amount of electric energy as cost, solution pump driving
Dynamic heat pipe can overcome long distance delivery heat-pipe working medium caused by on-way resistance, avoid driving hypodynamic ask under the small temperature difference
Topic, avoids condensation segment existing for gravity type monomer heat pipe can only be in the installation confinement problems of evaporator section eminence.Two-phase flow separation
Formula power type heat pipe utilizes the ripe parts such as condenser, evaporator and the connecting line of similar direct-expansion type refrigeration system, manufacture dimension
Repair conveniently.
Fresh air treatment system of the present invention, by reversible hot-pipe system, two phase flow separate-type heat pipe system, cold and hot water system
System, can cold/hot cutting heat exchange pumping system, the respective fresh air heat exchanger of interior heat pump, by fresh air flow direction be arranged in order, realize energy
Cascade utilization, the refrigerating efficiency of each unit is improved, reduce dehumidifying operating cost, and aerial temperature and humidity is accurately controlled in target
Parameter；Fresh air treatment system of the present invention, the only chilled water pipeline with raw water system air conditioner dock, non-outdoor unit group and its
Connecting leg outside his refrigeration system, simplied system structure, save production cost；, can when fresh air duct and distant return airway
System is subjected to split-type design, that is, the Fresh air handing section and return air processing section being separated from each other respectively with fresh air duct and return air wind
Road is connected, and the circulation loop to form each unit is connected using online pipeline between new return air processing section；Fresh air of the present invention
Processing system can bear indoor all hot humidity load, and no particular/special requirement room can omit indoor fan coil air conditioner system, wherein
Summer water system bears most of thermic load and controls semen donors according to dew-point temperature setting value, and dew point can as little as 5 DEG C, and
Using fresh air of the refrigeration gained heat come appropriate heating after cool-down dehumidification, the raising ventilation temperature of zero thermal energy consumption again is realized；This
The fresh air treatment system being related to is invented, is compared by the enthalpy of fresh air and return air, subsystems synthetic operation is controlled, realizes the summer
The whole year in season, winter and conditioning in Transition Season automatically adjusts, and the system has the recovery of two-stage air return energy, synthesis energy saving effect tribute
Offer huge.
Brief description of the drawings
The fresh air treatment system schematic diagram one (summer condition) of Fig. 1 present invention；
Fig. 2 is winter condition fresh air treatment system schematic diagram in Fig. 1；
The fresh air treatment system schematic diagram two (summer condition) of Fig. 3 present invention；
In above figure：The pending fresh airs of 1-；2- fresh air Temperature Humidity Sensors；The reversible heat pipe fresh air heat exchangers of 3-；4- two-phases
Flow separation formula heat pipe evaporator；5- separate heat pipe flow valves；6- water cooling heat exchangers；7- humidifiers；8- separate heat pipe gas phases
Working medium tube；9- can cold/hot cutting heat exchange pump fresh air heat exchanger；10- separate heat pipe liquid phase working fluid pipes；Evaporator with heat pump in 11-；12-
Dew point temperature sensor；13- two phase flow separate heat pipe condensers；Heat pump condenser in 14-；15- air feed Temperature Humidity Sensors；
16- air feeds；17- cold water flow valves；18- cold water inlets；19- cold-water return pipes；Throttling of heat pump valve in 20-；Heat pump is done in 21-
Dry filter；Heat pump compressor in 22-；The pending return air of 23-；24- air return temperature humidity sensors；25- can cold/hot cutting heat exchange pump
Return-air heat exchanger；26- can cold and hot switching four-way reversing valve；27- can cold/hot cutting change heat pump compressor；28- check valves；29- can be cold
Hot-swap heat pump drying filter；30- can cold/hot cutting heat exchange pump choke valve；31- exhaust fans；32- heat-insulating and sealing plates；In 33-
Heat pump fluid circulation line；34- air drafts；35- air feed blower fans；36- central control systems；37- can cold/hot cutting heat exchange pump work substance follow
Endless tube road；38- control lines and power line, the reversible heat-pipe working medium circulation lines of 39-；The reversible heat pipe return-air heat exchangers of 40-；41- can
Backheating pipe four-way reversing valve；The reversible heat pipe solution pumps of 42-；The reversible heat pipe gas-liquid separators of 43-；The online pipelines of 44-.
Embodiment
The present invention is described in further details with reference to specific embodiment and accompanying drawing.
A kind of fresh air treatment system using two phase flow separate heat pipe temperature control, including reversible hot-pipe system, two-phase flow point
From formula hot-pipe system, cold and hot water supply system, humidification system, can cold/hot cutting heat exchange pumping system, interior heat pump and central control system,
The central control system includes central controller and sensing system, and the sensing system includes fresh air temperature and humidity sensing
Device, air return temperature humidity sensor, air feed Temperature Humidity Sensor and dew point temperature sensor, the index detected is fed back to
Central controller；Feedback control reversible hot-pipe system of the central controller according to sensing system, two phase flow separate heat pipe system
System, cold and hot water supply system, can cold/hot cutting heat exchange pumping system, interior heat pump, humidification system cooperate jointly regulation fresh air temperature and
Humidity, carry out air feed；
Fresh air is handled by following specific steps successively：
(1) fresh air Temperature Humidity Sensor is arranged on fresh air channel porch, and fresh air utilizes reversible heat pipe in fresh air channel
System is recovered energy out of return air channel, and new air temperature is handled；
When winter return air temperature is higher than new air temperature, heat is absorbed；When summer return air temperature is less than new air temperature, inhale
Receive cold；When conditioning in Transition Season return air temperature is less than setting value, reversible hot-pipe system is shut down, and is changed by reversible heat pipe four-way reversing valve
Working medium circulation direction；In summer, reversible heat pipe reclaims cold from return air, saves freezing water consumption；Reversible heat pipe when in the winter time
Heat is reclaimed from return air, saves amount of hot water；
(2) evaporator of two phase flow separate-type heat pipe system, which absorbs, carrys out wind-heat amount, for two phase flow separate-type heat pipe system
Condenser use；The evaporator of two phase flow separate-type heat pipe system is arranged on fresh air channel or return air channel；To process
Wind is cooled down, and condenser of the heat transfer of absorption to two phase flow separate-type heat pipe system is used；
(3) pass through cold and hot water supply system by the fresh air of two phase flow separate-type heat pipe system, carry out temperature adjustment；
(4) fresh air Jing Guo temperature adjustment passes through humidification system, carries out humidity regulation；Winter humidifies to fresh air；
(5) fresh air Jing Guo humidity regulation by can cold/hot cutting exchange heat pumping system recovered energy out of return air channel；
When winter return air temperature is higher than new air temperature, heat is absorbed out of return air channel；When summer return air temperature is less than
During new air temperature, cold is absorbed out of return air channel；, can cold/hot cutting heat exchange pumping system when conditioning in Transition Season return air temperature is less than setting value
Shut down, pass through reversible heat pipe four-way reversing valve transformation working medium loop direction；
(6) by can cold/hot cutting heat exchange pumping system fresh air pass through interior heat pump evaporator；The steaming of interior heat pump
Device is sent out to use condenser of the heat transfer of absorption to interior heat pump；Summer is participated in Fresh air handing, is absorbed in summer cold
Fresh air after amount passes through the evaporator cool-down dehumidification of interior heat pump；
(7) fresh air Jing Guo above-mentioned steps passes through dew point temperature sensor, successively by two phase flow separate-type heat pipe system
Condenser, the condenser temperature adjustment twice in succession of interior heat pump；The condenser of two phase flow separate-type heat pipe system utilizes
The heat of the evaporator transmission of two phase flow separate-type heat pipe system is to temperature adjustment of fresh air；The condenser of interior heat pump utilizes it
The heat of the evaporator transmission of preceding interior heat pump is suitable through ventilation temperature humidity sensor feedback temperature to fresh air temperature adjustment again
Shi Jinhang air feeds.
The central control system of the present invention, according to each Temperature Humidity Sensor measured value and the air feed humiture of setting, realize
Ventilation temperature and dew-point temperature automatically adjust, by comparing fresh air Temperature Humidity Sensor 2 and the institute of air return temperature humidity sensor 24
Measured value, the enthalpy being calculated is compared, season operating mode is judged, through control line and power line 38 to separate heat pipe
Flow valve 5, humidifier 7, cold water flow valve 17, can cold and hot switching four-way reversing valve 26 and other motors carry out corresponding season control
System, reach the independent control and energy-saving run of annual fresh air air feed humiture.
The step under summer condition, obtains dew-point temperature by dew point temperature sensor 12 first, and central controller 36 passes through
Aperture control to the cold water flow valve 17 of water system and can cold/hot cutting change the start and stop of heat pump compressor 27 to change refrigerating capacity, it is real
The regulation of existing dew-point temperature and water capacity, while ventilation temperature is obtained by air feed Temperature Humidity Sensor 15, to separate heat pipe stream
The aperture control of amount valve 5 changes heating capacity with the start and stop of interior heat pump compressor 22, realizes the regulation of ventilation temperature；
In the winter time under operating mode, air feed humiture is obtained by air feed Temperature Humidity Sensor 15, central controller 36 is by water
The aperture control of the cold water flow valve 17 of system and can cold/hot cutting change the start and stop of heat pump compressor 27 to change heating amount, realize and supply
The regulation of air temperature, while the aperture of humidifier 7 is controlled to change humidification amount, realize the regulation of air feed humidity；
Under transition season operating mode, only open exhaust fan 31 and air feed blower fan 35 is taken a breath.
A kind of structural union of specific reversible hot-pipe system is provided in the present embodiment, it is reversible in the present embodiment
Hot-pipe system includes the reversible heat pipe fresh air heat exchanger 3 for being arranged on fresh air channel porch, and is arranged on return air channel entrance
The reversible heat pipe return-air heat exchanger 40 at place, reversible heat pipe fresh air heat exchanger 3 and reversible heat pipe return-air heat exchanger 40 are by can backheating
Plumber's matter circulation line 39 is connected, and reversible heat pipe four-way reversing valve 41, reversible is set on reversible heat-pipe working medium circulation line 39
Heat pipe solution pump 42, reversible heat pipe gas-liquid separator 43, switching working medium circulation direction.
Reversible hot-pipe system possesses carries out the function of cold and hot amount recovery in winter summer, saves bypass air channel and reduces equipment
Volume, precooling or the pending fresh air 1 of preheating, using the efficient heat transfer circulation of two-phase flow regime working medium reduce system energy consumption and part into
This, its own energy consumption is only solution pump work power consumption, and can be realized and pass by online pipeline 44 and heat exchanger separation design
The remote energy transfer function united not available for monomer-type heat exchange of heat pipe.
It is specifically divided into summer condition and winter condition：
Under summer condition, as shown in figure 1, liquid heat-pipe working medium drives in the reversible power of heat pipe solution pump 42 and the new return air temperature difference
Under dynamic, flow direction is determined through reversible heat pipe four-way reversing valve 41, first in the reversible heat pipe new air heat-exchange in higher temperature
Heat absorption evaporation in device 3, and gas-liquid two-phase fluidised form is developed into, along reversible heat-pipe working medium circulation line 39 and the arrival of online pipeline 44
Gas-liquid is carried out in exothermic condensation in the reversible heat pipe return-air heat exchanger 40 of lower temperature, then to reversible heat pipe gas-liquid separator 43 is interior
Separation, and working medium circulation flow is adjusted, liquid heat-pipe working medium arrives the reversible boosting of heat pipe solution pump 42 and participates in circulation again, so not
It is disconnected to carry out cold recovery；
Under winter condition, as shown in Fig. 2 liquid heat-pipe working medium drives in the reversible power of heat pipe solution pump 42 and the new return air temperature difference
Under dynamic, determine flow direction, to exchange heat in the reversible heat pipe return air in higher temperature first through reversible heat pipe four-way reversing valve 41
Heat absorption evaporation in device 40, and gas-liquid two-phase fluidised form is developed into, reached along reversible heat-pipe working medium circulation line 39 and online pipeline 44
Exothermic condensation in reversible heat pipe fresh air heat exchanger 3 in lower temperature, then to entering promoting the circulation of qi in reversible heat pipe gas-liquid separator 43
Liquid separates, and adjusts working medium circulation flow, and liquid heat-pipe working medium arrives the reversible boosting of heat pipe solution pump 42 and participates in circulation again, so
Constantly carry out heat recovery；In transition season, reversible heat pipe solution pump 42 is closed, stops energy regenerating.
A kind of structure of specific two phase flow separate-type heat pipe system is provided in the present embodiment.In actual use process
In, the two phase flow type separating heat-pipe evaporator 4 of two phase flow separate-type heat pipe system is arranged in fresh air channel or is arranged on back
In wind passage；If being arranged in fresh air channel, two phase flow type separating heat-pipe evaporator 4 is arranged on reversible heat pipe fresh air heat exchanger 3
Afterwards, using fresh air heat energy, realize the raising of the energy consumption of summer zero and adjust ventilation temperature, while precooling fresh air, reach saving heat
Can be with the purpose of cold energy；If being arranged in return air channel, two phase flow type separating heat-pipe evaporator 4 is arranged on reversible heat pipe return air and changed
Hot device 40 and raising and the tune that the energy consumption of summer zero between cold/hot cutting heat exchange pump return-air heat exchanger 25, using return air heat energy, can be realized
Save ventilation temperature, while cool down return air, reduction can cold/hot cutting heat exchange pump condensing pressure, reach the purpose of saving heat energy and cold energy.
Two phase flow separate heat pipe condenser 13 is arranged between interior evaporator with heat pump 11 and interior heat pump condenser 14, with two
Phase flow separation formula heat pipe evaporator 4 is connected by separate heat pipe gas-phase working medium pipe 8, separate heat pipe liquid phase working fluid pipe 10, institute
State separate heat pipe liquid phase working fluid pipe 10 and be provided with separate heat pipe flow valve 5.
This two phase flow separate-type heat pipe system disables in non-summer, closes separate heat pipe flow valve 5.
Two phase flow type separating heat-pipe evaporator 4 had into two kinds of set-up modes, and only summer participates in Fresh air handing, tool
Body is as follows：
First, two phase flow type separating heat-pipe evaporator 4 is arranged in fresh air channel, summer condition is as shown in figure 1, two phase flow
Separate heat pipe condenser 13 is in relatively low dew-point temperature environment, and two phase flow type separating heat-pipe evaporator 4 is in higher warp
Fresh air temperature environment after recuperation of heat precooling, the internal working medium of two phase flow type separating heat-pipe evaporator 4 is inhaled under temperature difference driving
Hot gas turns to two-phase flow regime, cold into 13 heat releases of condenser of two phase flow separate heat pipe through separate heat pipe gas-phase working medium pipe 8
It is solidifying, return to two phase flow type separating heat-pipe evaporator 4 again through separate heat pipe flow valve 5 and separate heat pipe liquid phase working fluid pipe 10
Endothermic gasification, so constantly circulation, with the heat air feed of fresh air, fresh air is cooled down with the cold of air feed after dehumidifying, and by dividing
Flow-rate adjustment, so as to adjust heating load and ventilation temperature, system configuration and exchange by optimization are carried out from formula heat pipe flow valve 5
Hot device pipeline, the Optimal design and calculation of working medium charging amount, realize that working medium two-phase flow regime is conducted heat, energy transmission density is big, working medium stream
Dynamic resistance is small, hot-pipe system only relies on the purpose that the small temperature difference can be run steadily in the long term.
2nd, two phase flow type separating heat-pipe evaporator 4 is arranged in return air channel, summer condition is as shown in figure 3, specific new
Wind processing procedure is identical in fresh air channel with being arranged on, and will not be described here.
A kind of structure of specific cold and hot water supply system is provided in the present embodiment.Cold and hot water- to-water heat exchanger 6 in the present embodiment
It is arranged in fresh air channel, after two phase flow type separating heat-pipe evaporator 4.Matchmaker's water of outside Cooling and Heat Source is through cold water inlet
18, cold water flow valve 17, water cooling heat exchanger 6, the release cold and hot amount of cold-water return pipe 19.
Cold and hot water supply system bears season of summer and winter major part cooling and heating load, and by controlling the aperture of cold water flow valve 17, realizes
Chilled-water flow in water cooling heat exchanger 6 is controlled to adjust dew-point temperature and summer air feed water capacity, winter condition under summer condition
Hot water flow adjusts winter ventilation temperature in lower control water cooling heat exchanger 6.
A kind of structure of specific humidification system is provided in the present embodiment.Humidifier 7 is arranged on newly in the present embodiment
In wind passage, after cold and hot water- to-water heat exchanger 6.
This humidification system, humidification process is carried out to fresh air for winter, detected according to air feed Temperature Humidity Sensor 15 wet
Degree and air feed humidity set point, humidification amount is adjusted.
There is provided in the present embodiment it is a kind of specifically can cold/hot cutting heat exchange pumping system structure.In the present embodiment can be cold and hot
Switch heat pump include can cold/hot cutting heat exchange pump fresh air heat exchanger 9 and can cold/hot cutting heat exchange pump return-air heat exchanger 25, can be cold and hot
Switching heat pump fresh air heat exchanger 9 is arranged in fresh air channel, positioned at the rear of humidifier 7；It is described can cold/hot cutting heat exchange blowback wind change
Hot device 25 is arranged in return air channel, can cold/hot cutting heat exchange pump fresh air heat exchanger 9 positioned at the reversible rear of heat pipe return-air heat exchanger 40
With can cold/hot cutting heat exchange pump return-air heat exchanger 25 by can the cold/hot cutting pump work substance circulation line 37 that exchanges heat connect, in disengaging liquid pipeline
Upper setting can cold/hot cutting change heat pump four way reversing valve 26, can cold/hot cutting change heat pump compressor 27, can cold/hot cutting heat exchange pump it is dried
Filter 29, can cold/hot cutting heat exchange pump choke valve 30 and check valve 28, regulation working medium circulation direction.
The system realizes summer cold secondary recovery and winter heat secondary recovery, improves energy utilization rate and energy product
Matter.
It is specifically divided into summer condition and winter condition：
Under summer condition, as shown in Figure 1 can cold/hot cutting change heat pump four way reversing valve 26 action switch to refrigeration mode, can be cold
Hot-swap heat pump return-air heat exchanger 25 from pending return air 23 further recovery cold, heat pump fluid through check valve 28, can be cold
Hot-swap heat pump drying filter 29, can the constant enthalpy decompression of cold/hot cutting heat exchange pump choke valve 30, can cold/hot cutting heat exchange pump fresh air change
Hot device 9 makes pending fresh air 1 further cool, then to can cold/hot cutting change heat pump compressor 27 boost energization, through that cold and hot can switch
Heat pump four way reversing valve 26 to can the heat release of cold/hot cutting heat exchange pump return-air heat exchanger 25, so circulation, undertake part cooling load from outdoor air,
Save freezing water consumption, and can cold/hot cutting heat exchange pump return-air heat exchanger 25 be in the air draft less than outdoor temperature and radiate, have
Beneficial to condensing pressure is reduced, Energy Efficiency Ratio is improved；
Under winter condition, as shown in Figure 2 can cold/hot cutting change heat pump four way reversing valve 26 action switch to heating mode, can be cold
Hot-swap heat pump return-air heat exchanger 25 further absorbs heat from pending return air 23, can cold/hot cutting heat exchange pump fresh air heat exchanger 9
Setting ventilation temperature value is reached to the heating of pending fresh air 1, for bearing a part of fresh air thermic load, winter hot water is saved and uses
Amount, and can cold/hot cutting heat exchange pump return-air heat exchanger 25 be in the air draft higher than outdoor temperature and absorb heat, be advantageous to improve evaporation
Pressure, Energy Efficiency Ratio is improved, eliminate frost, exempt defrost program.
A kind of specific interior heat pump structure is provided in the present embodiment.Interior evaporator with heat pump 11 and interior heat pump are condensed
Device 14 is arranged in fresh air channel, and interior evaporator with heat pump 11 is located at can cold/hot cutting heat exchange pump fresh air heat exchanger 9 and two-phase flow point
From between formula heat pipe condenser 13, interior heat pump condenser 14 is arranged on after two phase flow separate heat pipe condenser 13；Interior heat pump
Evaporator 11 is connected with interior heat pump condenser 14 by interior heat pump fluid circulation line 33, and disengaging liquid pipeline is done provided with interior heat pump
Dry filter 21, interior throttling of heat pump valve 20, interior heat pump compressor 22.
Interior heat pump is arranged in fresh air channel, the heat pump in deactivation of non-summer；Realize that deep temperature reduction dehumidifies, and
Consuming a small amount of electric energy provides air feed heating required most of heat.
In the case of summer condition, as shown in figure 1, interior evaporator with heat pump 11 by fresh air finally it is stable be cooled to it is set
Dew point, heat pump fluid carry its heat absorbed, and through interior heat pump compressor 22 boosting energization, heat pump condenser 14 will in arrival
Heat is released to the low temperature fresh air after dehumidifying, and condensed heat pump fluid is done via interior heat pump fluid circulation line 33, interior heat pump
After dry filter 21, the interior reducing pressure by regulating flow of throttling of heat pump valve 20, return to interior evaporator with heat pump 11 absorb heat again cooling fresh air, by excellent
The system configuration of change and the heat exchange area suitably increased, dew point can as little as 5 DEG C, and can run steadily in the long term.
The present invention can also by online pipeline 44 by fresh air channel and return air channel it is logical in the corresponding heat exchanger of each unit
Connect, realize remote not available for the Fresh air handling units for being equipped with board-like heat regenerator or conventional monomer formula heat exchange of heat pipe
Energy transfer function；Space utilization simultaneously is flexible.
Embodiment one
In the present embodiment, two phase flow type separating heat-pipe evaporator 4 is arranged in fresh air channel.
Summer fresh air adjusts process：As shown in figure 1, pending fresh air 1 successively by reversible heat pipe fresh air heat exchanger 3,
Two phase flow type separating heat-pipe evaporator 4, water cooling heat exchanger 6, can cold/hot cutting heat exchange pump fresh air heat exchanger 9, interior evaporator with heat pump 11,
Two phase flow separate heat pipe condenser 13, interior heat pump condenser 14 and air feed blower fan 35, reversible heat pipe return air heat exchange is realized successively
Device 40 absorbs cold from the relatively low pending return air 23 of enthalpy or temperature, and is released to by reversible heat pipe fresh air heat exchanger 3
Pending fresh air 1, the release of two phase flow type separating heat-pipe evaporator 4 absorb dew point from two phase flow separate heat pipe condenser 13
The cold of air under state, the water cooled released cold quantity of heat exchanger 6 of external source, can cold/hot cutting heat exchange pump fresh air heat exchanger 9 discharge
Can the cold that is absorbed from pending return air 23 of cold/hot cutting heat exchange pump return-air heat exchanger 25, the interior release of evaporator with heat pump 11 is from interior
Heat pump condenser 14 heats the cold that is absorbed of air feed 16, new air temperature is down to apparatus dew point setting value, after cool-down dehumidification, two
The release of phase flow separation formula heat pipe condenser 13 absorbs heat, interior heat from the precooling fresh air of two phase flow type separating heat-pipe evaporator 4
Pump condenser 14 discharges the heat absorbed from interior evaporator with heat pump 11 cooling fresh air, and the fresh air heating after dehumidifying reaches air feed
After humiture setting value, air-conditioned room is delivered to by air feed blower fan 35；Air feed 16 is absorbed heat in air-conditioned room after moisture absorption, pending time
Wind 23 enters return air processing section, successively by reversible heat pipe return-air heat exchanger 40 and can cold/hot cutting heat exchange pump return-air heat exchanger 25,
Two-stage cold recovery is realized, air draft 34 is discharged to outdoor by exhaust fan 31.
Winter fresh air adjusts process：As shown in Fig. 2 pending fresh air 1 successively by reversible heat pipe fresh air heat exchanger 3,
Water cooling heat exchanger 6, humidifier 7 and can cold/hot cutting heat exchange pump fresh air heat exchanger 9, realize successively from enthalpy or temperature it is higher treat from
Heat is absorbed in reason return air 23, and pending fresh air 1 is released to by reversible heat pipe fresh air heat exchanger 3, external heat source is water cooled
Heat exchanger 6 discharge heat, the shower humidification of humidifier 7, can cold/hot cutting heat exchange pump heat is absorbed from pending return air 23 and is discharged,
After fresh air heating after humidification reaches air feed humiture setting value, air-conditioned room is delivered to by air feed blower fan 35；Air feed 16 is in air-conditioning
After heat release is dried in room, pending return air 23 enters return air processing section, successively by reversible heat pipe return-air heat exchanger 40 and can be cold
Hot-swap heat pump return-air heat exchanger 25 absorbs heat, realizes two-stage heat recovery, air draft 34 is discharged to outdoor by exhaust fan 31.
Conditioning in Transition Season fresh air adjusts process：By 24 temperature measurement wets of fresh air Temperature Humidity Sensor 2 and air return temperature humidity sensor
Degree, when determining that fresh air enthalpy is smaller, humiture is suitable, reversible hot-pipe system, cold and hot water supply system, two phase flow separate heat pipe system
System, can cold/hot cutting heat exchange pumping system, interior heat pump and humidification system be stopped status, pending fresh air 1 is directly by air feed
Blower fan 35 delivers to air-conditioned room, and air draft 34 is directly discharged to outdoor by exhaust fan 31.
Embodiment two
Embodiment one is different from, two phase flow type separating heat-pipe evaporator 4 is arranged in return air channel in the present embodiment.
In summer condition, as shown in figure 3, two phase flow separate heat pipe condenser 13 is in relatively low dew-point temperature environment,
Two phase flow type separating heat-pipe evaporator 4 is in higher return air temperature environment, the two phase flow separate type heat under temperature difference driving
The internal working medium endothermic gasification of pipe evaporator 4 is two-phase flow regime, through separate heat pipe gas-phase working medium pipe 8, into two phase flow separate type
The exothermic condensation of heat pipe condenser 13, two-phase flow point is returned to through separate heat pipe flow valve 5 and separate heat pipe liquid phase working fluid pipe 10
From the endothermic gasification again of formula heat pipe evaporator 4, so constantly circulation, with the heat air feed of return air, with air feed after dehumidifying
Cold cool down return air, exempt thermal energy consumption, and Flow-rate adjustment is carried out by separate heat pipe flow valve 5 again, so as to adjust heating load and
Ventilation temperature, by system configuration and heat exchanging device pipeline, the Optimal design and calculation of working medium charging amount of optimization, realize working medium two
The heat transfer of phase fluidised form, energy transmission density is big, Working fluid flow resistance is small, hot-pipe system only relies on the small temperature difference and can run steadily in the long term
Purpose.Non- summer closes separate heat pipe flow valve 5, disables two phase flow separate-type heat pipe system.
Remaining course of work and part are the same as embodiment 1.
It is described above, only it is present pre-ferred embodiments, is not the limitation for making other forms to the present invention, it is any
Those skilled in the art are changed or are modified as the equivalent of equivalent variations possibly also with the technology contents of the disclosure above
Embodiment is applied to other fields, but every without departing from technical solution of the present invention content, according to the technology of the present invention essence to
Any simple modification, equivalent variations and the remodeling that upper embodiment is made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
- A kind of 1. fresh air treatment system using two phase flow separate heat pipe temperature control, it is characterised in that：Including reversible hot-pipe system, Two phase flow separate-type heat pipe system, cold and hot water supply system, humidification system, can cold/hot cutting heat exchange pumping system, interior heat pump and center Control system, the central control system include central controller and sensing system, and the sensing system includes fresh air Temperature Humidity Sensor, air return temperature humidity sensor, air feed Temperature Humidity Sensor and dew point temperature sensor, by what is detected Index feeds back to central controller；Central controller is according to the reversible hot-pipe system of feedback control, the two-phase flow point of sensing system From formula hot-pipe system, cold and hot water supply system, can the regulation that cooperates jointly of cold/hot cutting heat exchange pumping system, interior heat pump, humidification system it is new The temperature and humidity of wind, carry out air feed；Fresh air is handled by following specific steps successively：(1) fresh air Temperature Humidity Sensor is arranged on fresh air channel porch, and fresh air utilizes reversible hot-pipe system in fresh air channel Recovered energy out of return air channel, new air temperature is handled；When return air temperature is higher than new air temperature, heat is absorbed；When return air temperature is less than new air temperature, cold is absorbed；Pass through Reversible heat pipe four-way reversing valve transformation working medium loop direction；(2) evaporator of two phase flow separate-type heat pipe system, which absorbs, carrys out wind-heat amount, cold for two phase flow separate-type heat pipe system Condenser uses；The evaporator of two phase flow separate-type heat pipe system is arranged on fresh air channel or return air channel；The wind of process is entered Row cooling, condenser of the heat transfer of absorption to two phase flow separate-type heat pipe system is used；(3) pass through cold and hot water supply system by the fresh air of two phase flow separate-type heat pipe system, carry out temperature adjustment；(4) fresh air Jing Guo temperature adjustment passes through humidification system, carries out humidity regulation；(5) fresh air Jing Guo humidity regulation by can cold/hot cutting exchange heat pumping system recovered energy out of return air channel；When return air temperature is higher than new air temperature, heat is absorbed；When return air temperature is less than new air temperature, cold is absorbed；Pass through Reversible heat pipe four-way reversing valve transformation working medium loop direction；(6) by can cold/hot cutting heat exchange pumping system fresh air pass through interior heat pump evaporator；The evaporator of interior heat pump Condenser of the heat transfer of absorption to interior heat pump is used；(7) fresh air Jing Guo above-mentioned steps passes through dew point temperature sensor, successively by the cold of two phase flow separate-type heat pipe system The condenser temperature adjustment twice in succession of condenser, interior heat pump；The condenser of two phase flow separate-type heat pipe system utilizes the heat pair of the evaporator transmission of two phase flow separate-type heat pipe system Temperature adjustment of fresh air；The heat of the condenser of interior heat pump evaporator transmission of interior heat pump before utilizing is to fresh air temperature adjustment again, through supplying Air feed is carried out when air temperature humidity sensor feedback temperature is suitable.
- 2. the fresh air treatment system according to claim 1 using two phase flow separate heat pipe temperature control, it is characterised in that：Institute Stating reversible heat pipe heat exchanging system includes being arranged on the reversible heat pipe fresh air heat exchanger (3) of fresh air channel porch, and is arranged on The reversible heat pipe return-air heat exchanger (40) of return air channel porch, reversible heat pipe fresh air heat exchanger (3) are changed with reversible heat pipe return air Hot device (40) is connected by reversible heat-pipe working medium circulation line (39), is set on reversible heat-pipe working medium circulation line (39) reversible Heat pipe four-way reversing valve (41), reversible heat pipe solution pump (42), reversible heat pipe gas-liquid separator (43).
- 3. the fresh air treatment system according to claim 2 using two phase flow separate heat pipe temperature control, it is characterised in that：Step Suddenly the two phase flow type separating heat-pipe evaporator (4) in (2) is arranged in fresh air channel, positioned at reversible heat pipe fresh air heat exchanger (3) Afterwards.
- 4. the fresh air processing method according to claim 2 using two phase flow separate heat pipe temperature control, it is characterised in that：Step Suddenly the two phase flow type separating heat-pipe evaporator (4) in (2) is arranged in return air channel, positioned at reversible heat pipe return-air heat exchanger (40) Afterwards.
- 5. the fresh air treatment system using two phase flow separate heat pipe temperature control according to claim 3 or 4, its feature exist In：Two phase flow separate heat pipe condenser (13) is arranged between interior evaporator with heat pump (11) and interior heat pump condenser (14), with Two phase flow type separating heat-pipe evaporator (4) passes through separate heat pipe gas-phase working medium pipe (8), separate heat pipe liquid phase working fluid pipe (10) Connection, the separate heat pipe liquid phase working fluid pipe (10) are provided with separate heat pipe flow valve (5).
- 6. the fresh air treatment system according to claim 5 using two phase flow separate heat pipe temperature control, it is characterised in that：Institute State cold and hot water supply system to be arranged in fresh air channel including cold and hot water- to-water heat exchanger (6), positioned at two phase flow type separating heat-pipe evaporator (4) Afterwards.
- 7. the fresh air treatment system according to claim 6 using two phase flow separate heat pipe temperature control, it is characterised in that：Institute State humidification system to be arranged in fresh air channel including humidifier (7), after cold and hot water- to-water heat exchanger (6).
- 8. the fresh air treatment system according to claim 7 using two phase flow separate heat pipe temperature control, it is characterised in that：Institute State can cold/hot cutting heat exchange pumping system include can cold/hot cutting heat exchange pump fresh air heat exchanger (9) and can cold/hot cutting exchange heat pump return-air heat exchanger (25), it is described can cold/hot cutting heat exchange pump fresh air heat exchanger (9) be arranged in fresh air channel, positioned at humidifier (7) rear；It is described can Cold/hot cutting heat exchange pump return-air heat exchanger (25) is arranged in return air channel, can positioned at reversible heat pipe return-air heat exchanger (40) rear Cold/hot cutting heat exchange pump fresh air heat exchanger (9) and can cold/hot cutting heat exchange pump return-air heat exchanger (25) by can cold/hot cutting heat exchange pump work substance Circulation line (37) connect, in the import and export pipeline set can cold/hot cutting change heat pump four way reversing valve (26), can cold/hot cutting heat exchange Pump compressor (27), can cold/hot cutting heat exchange pump device for drying and filtering (29), can cold/hot cutting heat exchange pump choke valve (30) and check valve (28)。
- 9. the fresh air treatment system according to claim 8 using two phase flow separate heat pipe temperature control, it is characterised in that：Institute Stating interior heat pump includes interior evaporator with heat pump (11) and interior heat pump condenser (14), is arranged in fresh air channel, described interior Evaporator with heat pump (11) positioned at can cold/hot cutting heat exchange pump fresh air heat exchanger (9) with two phase flow separate heat pipe condenser (13) it Between, the interior heat pump condenser (14) is arranged on after two phase flow separate heat pipe condenser (13)；Interior evaporator with heat pump (11) It is connected with interior heat pump condenser (14) by interior heat pump fluid circulation line (33), interior heat pump drying is provided with the import and export pipeline Filter (21), interior throttling of heat pump valve (20), interior heat pump compressor (22).
- 10. the fresh air treatment system according to claim 9 using two phase flow separate heat pipe temperature control, it is characterised in that： The fresh air channel and return air channel are made up of heat-insulating and sealing plate, and fresh air air feed blower fan is provided with fresh air channel exit, is returned Wind channel exit is provided with return air exhaust fan.
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| CN109595732A (en) * | 2018-12-10 | 2019-04-09 | 江苏致远高科能源科技有限公司 | A kind of depth dehumidifying energy-saving fresh air unit |
| CN111189344A (en) * | 2020-03-02 | 2020-05-22 | 青岛科思德节能设备有限公司 | Controllable microchannel heat pipe heat transfer device |
| CN112303789A (en) * | 2020-10-21 | 2021-02-02 | 青岛海尔空调电子有限公司 | Fresh air system and control method thereof |
| CN113719925A (en) * | 2020-05-20 | 2021-11-30 | 四川大学 | Full fresh air conditioning and humidifying integrated method and device of fluidized air source heat pump |
| CN114087742A (en) * | 2021-11-24 | 2022-02-25 | 美的集团武汉制冷设备有限公司 | Fresh air machine, control method thereof and computer readable storage medium |
| CN114087739A (en) * | 2021-11-24 | 2022-02-25 | 广东美的制冷设备有限公司 | Fresh air equipment control method and device, fresh air equipment and storage medium |
| CN111189344B (en) * | 2020-03-02 | 2024-04-26 | 青岛科思德节能设备有限公司 | Controllable micro-channel heat pipe heat transfer device |
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| CN114087742A (en) * | 2021-11-24 | 2022-02-25 | 美的集团武汉制冷设备有限公司 | Fresh air machine, control method thereof and computer readable storage medium |
| CN114087739A (en) * | 2021-11-24 | 2022-02-25 | 广东美的制冷设备有限公司 | Fresh air equipment control method and device, fresh air equipment and storage medium |
| CN114087742B (en) * | 2021-11-24 | 2023-05-26 | 美的集团武汉制冷设备有限公司 | New fan, control method thereof and computer readable storage medium |
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Application publication date: 20171215 |